词汇运用

1. I'm sorry I've spoken for too long, but I hope ________(我没有使你们厌烦).

2. Many people in the west like to ________(刺激) themselves with adventures.

3. You're ________(完全正确).

4. There exists a ________(潜在危险的)situation in that area.

5. You'll have to behave better if you really want to ________(给人留下好的印象).

6. It was a ________(缓解) to be able to talk to someone about my grievance(委屈).

7. He ________(非常忧虑) what job he can find after graduation.

8. "What should I do next?" asked the poor man ________(焦急地看着我).

9. It's ________(这个小男孩很有勇气) to make a speech in public.

10. There are ________(各种不同的图案) for you to choose from.

在以下常用的热处理方法中，经哪种方法处理后可以使钢材的硬度大大提高（）.

A.回火 

B.退火 

C.淬火 

D.正火